Car-truck side frame.



INVENTOR W. D. FORSYTH. CAR TRUCK SIDE FRAME.

APPLICATION FILED JUNE 23. 1913 2 SHEETS-SHEET 2.

Patented Jan. 19, 1915.

W, D. PORSYTH.

GAR TRUCK SIDE FRAME.

APPLICATION rnmn JUNE 23.1913

WIIJLIAM D. FORSYTH, 0F YOUNGSTOWN, OHIO, ASSIGNOR, BY MESNE' ASSIGNMENTS, TO RAILWAY PRODUCTSCOEPORATION, OF BUFFALO, NEW YORK, A CORPORATION OF FIEW YORK can-annex srnn rnaian.

Patented Jan. 19, 1915.

Application filed June 23, 1913. Serial No. 775,218

To all whom it may concern:

Be it known that l, VILLIAM D. FoRs'Y'rH,

a citizen of the United States, residing at- Youngstown, in the county of Mahoning and State of Ohio, have invented new and useful Improvements in Car-Truck Side Frames, of which the following isa specification.

The principal object of my invention is to provide an improved car truck side framein which the bolster guide bars are made in one piece.

Further objects are to attain certain other advantages as will be more fully set forth hereinafter.

lhe invention consists in a car truck side frame in which the bolster guide bars are made in one piece, preferably from a rolled section.

In the accompanying drawings, which line BB on Fig. 1; Fig.5 is a cross-section on the line on Fig. 1; Fig. 6 is a front elevation of the bolster guide frame; Fig. 7 is a vertical section on the line D--D on- Fig. 6; Fig. 8 is a vertical section of a bolster guide frame showing a modified construction. i

For the purpose of illustration I have shown the bolster guide frame 3 embodying my invention as applied to a car truck side frame in which the compression member 1 and the tension member 2 are each made of a single piece of metal; but it is to be understood that my invention is not limited to this application. The compression member '1 is preferably made from a piece of metal, rolled, forged or pressed into a channel shape, and has a web 5 with flanges 6, and is arched in the manner shown in Fig. 1. The tension member 2 is preferably also 'made from a channel shape, and has a Web compression member 1 and the tension member 2'fit between them,- and at the top of the bolster guide frame 3 the flanges 16 are fastened by rivets 8 to the flanges 6 of thecompression member 1, and at 'the bottom to the flanges 11 of the tension member 2 by rivets 12. The bolster guide frame 3 has an opening 17 adapted to receive a bolster, and this opening 17 is narrower at the top than. at the bottom. The bolster guide frame 3 is made from a structural shape having a web 14 and two spaced flanges 16 located between the edges of the web, as shown at the bottom of Fig. 7. This structural shape is bent along transverse lines so as to form an open frame having the opening 17 therein, and the ends of the structural shape are brou ht together, as indicated by the dotted line on. Fig. 6 at the middle of one of the sides. These abutting ends may be welded together. The edges of the structural shape from which the bolster guide frame 3 is made are cut away, as indicated in dotted lines in Fig. 7, to give thedesired shape to the finished bolster guide frame.

In the modified form of construction shown in Fig. 8, the bolster guide frame 3 is made from two pieces 18 of-rolled, forged or pressed-structural shape which are substantially T-shap'e in cross-section. pieces 18 ,have. a body portion 19 and a web or fin 20. Each piece is bent along transverse liiles to form an open. frame, and the edges of the body-portions 19 'are brought together and Welded, as indicated by the line '22. The other edges '21 of the body portion 19 arevcut away, as indicated in the dotted lineson Fig.- 8, to give thedesired'shape to the bolster guide frame.

According tomy invention, a strong and light bolster guide frame may be cheaply and easily made from rolled or pressed smoother surfaces than a cast frame.

These Obviously, the structure which I have shown and described may be considerably modified Without departing from my invention, and I do not Wish, therefore, to be limited to this exact construction.

What I claim as my invention is: r

1. A car truck side frame comprising a channel-shaped compression member and a tension member having spaced flanges thereon at its middle portion, said. compression member and said tension member being spaced apart at their' middles, a bolster guide frame comprising a structural shape having parallel flanges thereon and bentalongtransverse-lines into a frame having a bolster opening therein, the ends of said structural shape being brought together at the middle of one of the sides of said frame and Welded, the flanges on said bolster guide frame being riveted to the sides of said channel-shaped compression member at its middle and to said flanges on said tension member. I

2. A car truck side frame comprising a compression and a tension member spaced apart at their middle portions, a holster guide frame comprising a structural shape having parallel flanges thereon and bent along transverse lines'into a quadrilateral frame having a bolster opening therein, the

flanges of said bolster guide frameheing riveted to said middle portions of said compression and tension members on opposite sides thereof.

In Witness whereof I have hereunto suhscribed, my name in the presence of two saloscribing Witnesses. B

WILLIAM D. IQIRSYTII;

Witnesses J. I. CALLAHAN, A. M. Nnnrnn, 

